Rolls-Royce Trent 1000 engines need new fan blades due to manufacturing error

The US aviation regulator is ordering inspections and replacements for specific fan blades in Rolls-Royce Trent 1000 jet engines. An investigation found that some low-pressure compressor fan blades were incorrectly finished, which could lead to cracks.

This rule means airlines operating Boeing 787 Dreamliners with these engines must now inspect and potentially replace parts. It shifts the cost of a manufacturing defect from the engine maker to the airlines, who must ground planes and pay for the work. This is a common pattern in aviation, where safety issues often lead to costly, mandatory fixes for operators.